Alton city police continue their search for a pair of suspects and a pair of victims in a home invasion gone wrong Sunday night that escalated into a firefight that left one person dead.

Police are in search of one of four suspects believed to have taken part in the armed robbery, while another succumbed to his bullet wounds at a hospital that night.

The group is believed to have forced their way inside a residence off of Kantunil Street in Alton where they were welcomed by gun shots from two residents.

Authorities say those residents fled the rented home and are being sought for questioning.